TL;DR
This review discusses recent advances in semiconductor quantum dot-based single-photon sources, highlighting progress in generating indistinguishable photons and entangled pairs for quantum applications, aiming for compact, LED-like devices.
Contribution
It summarizes recent developments in semiconductor quantum light sources, emphasizing progress in photon indistinguishability and entanglement, and discusses potential for practical quantum light devices.
Findings
Significant progress in generating indistinguishable single photons.
Advances in creating entangled photon pairs.
Potential for compact, LED-like quantum light sources.
Abstract
Lasers and LEDs display a statistical distribution in the number of photons emitted in a given time interval. New applications exploiting the quantum properties of light require sources for which either individual photons, or pairs, are generated in a regulated stream. Here we review recent research on single-photon sources based on the emission of a single semiconductor quantum dot. In just a few years remarkable progress has been made in generating indistinguishable single-photons and entangled photon pairs using such structures. It suggests it may be possible to realise compact, robust, LED-like semiconductor devices for quantum light generation.
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